Perpetual calendar.



c. E. BOILLOTQ PERPETUAL CALENDAR.

APPLICATION FILED SEPT. 3, 1909.

Patented Aug. 23, 1910.

5 SHEETS BHEET 1.

WITNESSES I U. E. BDILLOT.

PERPETUAL CALENDAR.

APPLIUATIDN FILED $11213. 1909.

968,31 9. I I Patented Aug. 23, 1910.

5 SHEETS-SHEET 8.

'70 Kid .5.

WITNESSES l/Vl/ENTOR G. E BOILLOT. PERPETUAL CALENDAR. APPLICATION IILIBD 511M. 3, i909.

Patehted Aug. 23, 1910.

5 SHEETS-SHEET 4.

{CW 9 1". I o

WITNESSES INVENTOR G. E. BOILLOT. PERPETUAL CALENDAR.

APPLICATION FILED SEPT. s, 1909.

- Patented Au 23, 1910.

5 SHEETS-SHEET 5.

l N VEN T 0 I? (Via/Mm fiozZ/ol WITNESSES BYK) ATTOR/VE rs UNITED STATES PAILNI OFFICE.

CHARLES E. BQILLOT,

PERPETUAL on NEW YORK, N. 'Y. CALENDAR.

Specification of Letters Patent.

Patented Aug. 23, 1910.- a, ram. Serial 1%. 516,001.

To all whom it may concern:

1 Be it known that I, CHARLES E. Bomno'r, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Perpetual Calendar, of which the following is a full, clear, and eiract de scription. a

This invention relates, to a new and useful perpetual calendar, which is adapted to be controlled by a clock. or any other source, so that it will indicate the day of the week, the'day of the month, and the month of the year.

An object of this invention is to provide a device which will automatically control the displaying of the days of the month for months of different length, and includes means for controlling the exhibitionof twenty-eight and twenty-nine, during the month of February, in the proper years.

Another object of this invention is to pro vide a units-indicating member and a tensindicating member, for designatin the days of the month, means for normal y. operating said members, and means for permitting the units-indicating member to remain sta tionary at the end of the month, while the tens-indicating member is advanced by a normally inactive means.

A still further object of this invention is to provide/a device which will be simple in construction, strong, durable, positive in its operation, and with the fewest parts consistent with good workmanship.

These and further objects, together with the construction and combination of parts, will be more full described hereinafter and particularly setorth in the claims.

Reference is to be had to the accompanying drawings forming a part of this specifi-' cation, in which similar characters of reference indicate corresponding parts in all the views, and in which Figure l is a vertical side view in section, showing the operating mechanism; Fig. 2 is a vertical side view in section, taken on the opposite side to the view shown in Fig. 1; Fig. 3 is a vertical front view in elevation, with the casin removed to show the underlying parts; F1 .4 is an enlarged side vi w in elevation, showing the mechanism or regulatin the length of the month; Fi 5 is a vertical side view in elevation, illustrating diagrannnatically the mechanism on ing mechanism illustrated in Fig. 4; and Fig. 6 is an enlarged detail view similar to Fig. 4, showing another position of the parts, and alsdillustrating the methodof operating the tens-indicating member at the end of the month.

Referring more particularly to the separate parts of the: device, 1 indicates'a-suitable support or frame, which is inclosed in asuitable casing 2 provided with a plurality These" openings 3.to 5 may be closed by any suitable transparent material, such as glass panes 6. .Within the casing 2 and secured upon a shaft 7, which is rotatably supported in' the frame-work 1, there is provided an indicatin member 8, which may be of any suitable orm, such as a roll inscribed with the days of the week, and is preferably located directly opposite to the opening 3 in the casing 2.- Below the indicating member 8, as clearly illustrated in Fig. 3, there is provided a similarindicating member 9, on which are inscribed the months of the year, and which is secured on'a shaft 10 rotatably supported in the frame 1 insuch a manner as to bring the indicating roll9direct-lyo posite to the opening 4 inthe casing 2. Be ,ow the months roll 9, as clearly illustrated'm Fig.

. 3, there is provided a units-indicating member 11, which is secured on a shaft 12, which in turn is rotatably su ported in the framework 1. Concentric w th the shaft 12, there is provided-a sleeve 13, to which is secured in. any well-known manner a tens-indicating member 14, which is preferably in the form of a roll having'two sets of numerals from 1 to 3 inscribed thereon, the sets bein spaced a art by blank spaces. The she 12 is 215a ted to be rotated in a manner to be descri hereinafter, and in turn rotates a gear 15 which issecured thereon in any wellknown manner and which meshes with a gear 16 rotatably supported on a stub-shaft 17 which in turn is su orted on the frame 1. The gear: 16 is IOVI ed with a sleeve 18, to which is secure a crank 19, on the end of which is provided an engaging roller 20. The roller 20 is adapted to engage between the teeth on a gear 21 which is secured on the sleeve 13. By this means, when the indicating roller 11 is rotated one complete revolution, the tens-indicating roll 14 will be advanced one ure or blan space directly in front of the the month roll 'for controlling the regulatof openings 3, 4 and 5 in the front thereof;

point, so as to bring'the next fig- In order to rotate the vided as shown inFlgs. 1. and. 311 motor 29, a

'-tent 23, which is secured to the frame any well known manner, and engages a ratchet wheel '24 secured on .the shaft 12. In order to there is provld'ed on the outer end thereof a gearfl25, which meshes with pins 26 on a gear wheel 27 rotatably supported on a shaft 28.

gear 27, there 1s prowhich may be of any suitable form, but is preferably in the form of a power spring,

which is secured at one end on'the shaft'28,

and at the other end on the framework 1, at

30. .The gear wheel 27 -is opera'tivelyconneeted to the shaft'28 and thus to the power spring29, by means of pawls-31, which are lvotally secured tothe. gear 27 and engage the teeth on a ratchet wheel 32 which cured to the shaft 28.- This connection per- ,mits the power spring to be wound up without operating the gear 27 and-the rest of'the mechanism. j y

Rotatabl secured on' the shaft 28 (see Fig. 3) an positively connected to the, gear 27 byany suitable'means, such as connections 33,.there is provided an escapeinent wheel 34, which is formed with a plurality of notches or slots 35, preferabl thirty-one in number, and spaced equally istant from each other, except at one point, which is indicated at 36, w ere a slightl eater space between the notches is provi e for a purpose to be described hereinafter..

By referring to Fig. 3, it will be seen that the gear 27 meshes with a'pinion 37 secured on a shaft 38, which is journaled in a sup:

lementary frame 39' connected to the main rame. thereby, there is provided a gear 40, which meshes with a pinion 41 secured on a shaft 42, which is 'rotatably supported in the frame 39,. 'Also secured on the shaft 42, there is provided a car 43, which has secured to it and the s aft 42 a suitable twin' cam-disk 44, the cams of which are separated by suitable drop-spaces or notches 45.

pinion 46 se- The gear- 43 meshes with a cured on a shaft 47 which is rotatably supported in the framework 39. Also secured on the shaft 47, there is provided a gear 48, which meshes with a pinion 49 secured on a shaft 50, which is journaled in the frame 39 in any well known manner. The shaft 50'also has secured thereon a fan 51, which retards and regulates the movement of the train of gearing just described.-

In order to prevent the mechanism from positively rotate the shaft 12,

Secured to the shaft 38 and rotated formed at its lower endso as to better engage in the slots 35 in the escapement wheel 34. In order to swingthe escapement pawl.

back'and forth, there 1s provided an arm 56, which issecured at one end of the rock-shaft 54, and at the other end-- has 'a turn-over portion which engages the "cam-disk 44. By

.this means, when the mechanism operates, the escapement awl 55 isswungback and forth, until, on its downward stroke, its extremlty is' m exact 'alinement'with'one of the slots 35 in' the 'escapement wheel 34.

.In order to start the mechanism in opera tion, there is provided a second rock-shaft 57, which is rotatably supported in the framework 39, and has secured thereto a spring arm 58, which engages atone end under the escapement pawl 55, and is adapted 'toL-l'ift this pawl out of the notch in the esc'apement wheel 34, When the escapeme'nt pawl 55'is lifted, it rotates the rockshaft 54 and removes the stop 53 away from thellug '52-,- thereby permitting the mechanism to rotate. The mechanism, however, is

prevented from rotating any considerable distance, until'the rock-shaft 57 has been rotated back to its original position, bymeans of a stop-arm 59, which is adapted to engage the lug 52 when in its raised osition. The rock-shaft- 57 is operated y a lever 60, which is secured thereto at one end,

. and which in turn is o erated by a lever 61 through a connecting lmk62,wh1ch is pivotally connected at each end to the levers 60 and .61. The lever-61 is secured to a shaft L63, which isrotatably supported in the frame 1 and extends to the opposite side thereof, where it is provided with an armature 64 located adjacent the poles of a plurality of ma ets 65 and adapted to be 0 erated there y. These magnets may e electrically connected to a suitable timeclock, vor to a suitable source of manual control, orto bothi The lever 61 may be also operated from a suitable time-clock by means of a link- 66, which is pivotally connectedat one end to the lever 61, and at the other end, may be connected to any suit-' able cam mechanism in a time-clock which will operate once-in twenty-four hours.

For the purposeof operating the day-ofthe-wcek-indicating roll 8, there is provided on the end of the shaft 7 as will be seen by reference 'to Figs. 1 and 3 a'ratchet-wheel 67, which is operated by a in 68 on a link 69 pivotally connected to tie lever 61. In order to prevent the accidental rotation of escapement pawl 55, which is bent and the indicating-member 8, there is provided aspiring detent- 7!), which is secured to. the frame 1 at one end, and engages between the teeth of a sprocket-wheel 71 at the other end, which is secured in any well-known manner to the shaft 7. In order to prevent thelever 61, through its connecting link 69, from advancing the indicating member 8 more than one day at a time, there is provided an escapement lock 72 on the lever 61, which is brought in contact with the teeth of the ratchet wheel 67 when the lever 61 is operated.

Having described the general 0 crating mechanism, I now come to one of t e more important features of my invention, which relates to the means for controlling the opra-.

tionof the units and tens-indicating members, so that they will display the proper day of the month for each month, no matter what its length. For this nr ose, there is provided, as is shown most 0 car y in Figs.

-1, 4 and 6, a guard 73, which is pivotally secured at one end to the escapement wheel 34, and provided at'the other end with a portion 74,which is of the proper-size and form, and so located, as to extend alongside of notches 75, 76 and 77, in the escapement wheel 34, and thereby prevent the lower-extremity of the escapement pawl from fallin into any and all of these notches. The note es 7 5,

76 and 77 correspond to thestopping points of the twenty-ninth, thirtieth and thirty-.

first days of the month. In order to bring the guard 73 in position at the propertime to cut out the proper number of days at the end of the month, there-isprovided a cam 78, which is pivotally secured .to the shaft 28, and held in its lowermost position against a stop 79 by means of a spring .80, which is secured to the-escapement wheel 34 at one end,- and engages the cam 78 at the other end. The cam 78-is provided with three pegs 81, 82 and 83, one of which isradapted to be engaged by a trip 84, according to the position of the latter. The various positions of this tri and the guard 73 are indicated-by the full and dotted lines in Fig.4. The trip 84 is secured at one end to a shaft 85, which extends across the front of the device, and is rotatably supported in the frame 1. This shaft 85' is provided with an arm 86, which is held in contact with any on of a plurality of pins 87 on the side of the month-indicating member 9, by means of a counter-weight'88, which is secured in any well known manner to the shaft 85. There is provided oneof the pins 87 for each month of the year with the exception of the month of February. These pins are located at various distances from the peripheries of the indicating-roll 9, according to the length of the month to which they correspon'd. The

ins corresponding to the months of greatest engt-h, suc as anuary, March, May, July,

, secured in any thirty days are located somewhat nearer the centerof the roll 9. For the month of February, there is provided. a gear 89, which is rotatably secured in any well known manner to the roll 9., and enga es an idle gear 90', which in turn meshesl Wlt a pinion 91' journaledon-the shaft/10 and secured against ro-' tation by means of a member 150, which is well known manner on the frame, whereby the ear 89 is caused to ro- I tate once in. every our revolutions of the shaft 10 and the indicating roll 9. ,That is '80 to say, it rotates once in four years. The gear 89 is provided on itszface with four pins 92 and 93, which, when located at their greatest distance from the shaft 10, engage the arm 86, andthereby form stops limiting I 3 the downward movement of the arm' 86;

'The pins 92 correspond to the ordinary years, and to a mont of twenty-eight days, and therefore permit the arm, 86 to fall in its greatest distance. The pin 93, however, corresponds to leap year, and is located, when in its outermost position, at a distance intermediate a position corresponding to a twenty eight-daymonth, and a position corresponding to a thirty-(la month, thereby 95 permitting the arm 86 to all into this pos1- tion. It will thus be seen, by referring to Figs. 4 and 5, that when the month of February approaches-its end during an ordinary year, the arm 86 will. have fallen inwardly to its greatest extent, thereby causing the trip 84 to. assume its lowest osition, as. indicated .in the full lines in ig. 4. In this position, the trip 84 will engage the peg 83, causing the cam 78 to force the guard 73 0 up into a position alongside of the notches 75, 76 and 77 before the e'scapement .wheel 34 is rotated to a -position in which the notch 7 5 will-have been'located under the escapement pawl 55. In the case of leap year, however, the pin 93'on the gear 89, will occupy itsoutermost position, preventing the arm 86 from falling ,to its extreme-lowermost osition, but permitting it to fall to its next ower'position, as indicated b of the tri 84 in the lowest otted ines-in Fig. 4. n thisposition, the trip 84 is adapted to'engage the peg 82 on the cam 78, raising the guard 73 somewhat laterthan just in time to,prevent the escapement awl 55 from falling into the notches 76 an .77, but too late to prevent it from falling into the notch 75. The rollers 11 and 14 will thereby be permitted to indicate a month of twent -nine days, and will skip the thirtieth and t irty-first, and jump to thefirst day of the next month on the next operation of the device. In the'case of a month of thirt days, such as September, the arm 86- wil the osition' 115 when the trip 84 engaged the peg 83, but.120

.thecam 78 and the guard 3 in time to re-' vent. the escapement pawl. 55 from fa ing into the notch 77, but-not sufliciently early to prevent this pawlfrom falling into 'the' notches'75 and 7 6.- In the case of thelongest.

months, such as December, thearm 86 will engage one of the egs 87 nearest to the pc- -01 the allowin into eac of the notches 75,76 and 77, there I davs.

riphery of the re .9, thereby holding the' arm 86 and the trip 84 in their highest position, in which the trip 84. will not engage any- 81, 82 or 83, but will slip by,

v t e escapement pawl 55. to drop by ermitting the day-of-the-inonth rolls 11 and 14 to indicate a month of thirty-one 'Anot-her importantpoint, which will now be described, relates to the mechanism for permitting the units-roll 11.to remain sta tionary while the tens-roll 14 is being. ro-.

tated at the end of the month, thereby doing away with the necessityof havin an extra numeral 1 on theunits-roll 11. his arrangement permits the use of a much lar-(gjir figure. for the same sized-roll, thus ad g to the ease with which the .device may bev read, without increasing its size.-

.Referring more particularly. to Fig. 6, when the esca ement pawl -55 is in the notch 77 corresponding to the thirty-first day of the month, the gear 25 on the shaft 12 will be opposite a blank space, indicated at 94 in the series'of pins 26, which form a gear on the gear '27. Thus, when the escapement wheel 34 advances to the first'day, of the month; that is, to a sition in which the escapement pawl 55 W1 1 drop into one of the notches 35, indicated at 95, which correspond to the first day of the month, the gear 25 will not be'operated by any pin 26 on the.

gear 27. Thus, the-shaft 12 will notbe rotated, and the indicating rolls Hand 14: will not berotated b this means. In order to rotate the tens-r01 14, however,-there is provided a stud 96 on the back side of the' gear 27, which is ada ted to enga e on a curved arm 97 secure to a rock-s aft 98, which extends across the device, and is rotatably supported in the frames 1 and 39. Secured on the opposite end of the rockshaft 98,'there is provided a leverv 99, which has pivotally secured thereto a pair of spring pawls 100 and 101, as more clearly illustrated in Fig. 2. The awl 100 on ages a ratchet wheel-102 secured on the sha it 10 to which the month-roll 9 is also secured, and is adapted to rotate the month-roll thereby. The month-roll 9 and the ratchetwheel 102 are prevented from accidental r0 tation by means of a spring detent 103,

which engagesthe ratchet-wheel 102. The

pawl 101 engages at its lower end with the gear-wheel 21 on the sleeve 13, whereby the tens-indicating roll 14 is rotated without rotating the units-roll 11. p In order that .the

stud 96 may have a suflicient swing in operthe esca'pement pawl 55 will not locirthe cs capement-wheel 34 until the stud 9.6 hasswung'cle'ar 'of the arm 97.

The operation ofthe device will be reag illly e understood from the above description.

.lever'61 is operated either by the magnet 65 or the 'connecting'link 66, from a; suitable source, such asatim-elock. The lever 61. advances-the day-of-the-week roll 8 one point, bringing the next dayopposite the opening 3, and simultaneouslyraises, throughthe'. links 62 and the lever 60, the escapement" pawl 55 and the stop 52. The mechanism then starts to rotate, due to the power in the spring 29, but is permitted to "rotate to only a. limited extent because of the fact that'the'stop. 59 comes in contact with the peg 52 as long asthelever 61 is raised. A s soon-asthe l'ever 61 is dropped," the device continues 'to operate,;and the escapement-pawl 55 is swung up and down by the cam let-and the arm 56, unt-i1 its lower end comes inalinement with one of the slots 35 In the .escapement wheel 34. When this occurs, the mechanism is brought to a stop. During this time, the gear 27, by its con nection through the pins .26 and the gear 25, has rotated the shaft 25 a fraction of a revol'ution, bringing the next numeral in the unitsroll opposite the space 5 in'the' casing 2. This operation is repeated once in every twenty-four'hours, and when the units-roll 11 has been. rotated. a complete revolution, the tens-roll 14 will have been rotated by the shaft 12 throu h the gears 15 and 16,

the crank 19 and t e gear 21 on the sleeve 13. When the mechanism approaches the end of the month, the units-roll will be advanced three, two or one numerals, accord ing' to the length of the month displayed opposite the opening 4 in the casing 2. Each operation is controlled by the arm 86 and the trip 84 cooperating with the cam 78 and .the guard 73, as fully described above.

When the. device reaches the end of the month; that is, when the escapement pawl 55 occupies a position corresponding. to the notch 77, the stud '96 on the next operation of the device will operate the lever 97, thereby manipulating. the lever-arm 99, causing the pawl '100 to rotate the month-roll 9 one step, bringing the next month opposite the 0' roll 14, leaving the units-roll 11 stationary,

with the numeral 1 still opposite the opening 5 in the casin '2. This operation is con.- tinued perpetual y, ing the proper days of the week and mont and month of the year, opposite the openings in the casing.

Having thus described my claim as new and Patent v a 1. In a calendar, the combination with-a plurality of indicating members, of means for rotating one of sa d members intermit tently, means for advancing another of saidmembers at each complete revolution of said first mentioned -me'r'hber, and additional means for advancing said second-mentioned member periodicall 2. In a calendar, the combination with a plurality of indicating rollers having charinvent-ion, I desire to secure by Letters acters inscribed thereon, of means for rotating one of said rollers intermittently, means for advancing another of said rollers at each complete revolution of said first-mentioned roller, and additional means for advancing said second-mentioned roller periodically.

3, In a calendar, the combination with a month-indicating member, of a day-indicatirig member, mechanism for controlling said last-mentioned member, and means on said first-mentioned member for controlling said mechanism.

4. In a calendar, the combination with a shaft, of an indicating member secured to said shaft, a sleeve on" said shaft, an indicating member secured to said sleeve, and means operated by said shaft adapted to operate said sleeve.

5. In a calendar, the combination with a. shaft, of an indicating member secured to said shaft, a sleeve on said shaft, an indicating member secured to said sleeve, means operated by said shaft, adapted to operate said sleeve, means for operating said shaft, and means independentof said shaft operated by said last-mentioned means adapted to operate said second-mentioned indicating member.

.6. In a. calendar, the combination with a shaft, of an indicating member secured to said shaft, a sleeve on said shaft, an indicating member secured to said sleeve, a gear on said shaft, a gear on said sleeve, ant} mechanism operatively connecting sai gears.

7. In a calendar, the combination with a shaft, of an indicating member secured to said shaft, a sleeve on said shaft, an indicating member secured to said sleeve, 9. gear on said shaft, a ratchet gear on said sleeve, mechanism 0 eratiyely connecting said gears, means fbr operating said shaft, and

year after year, bringmeans operated" by said last-mentioned means adapted too crate said ratchet gear lndep'endent of sai shaft. P

8. In a calendar, the combination with a shaft, of an indicating member secured 'tosaid shaft, a sleeve on said shaft, an indicat ing member secured to said sleeve, means operated by said shaft,' ada'pted to operate said-sleeve, means for operatin said shaft, a stud on said last-mention means, an arm operated bysaidstud, a rock-shaft connected to said arm, an arm operated by said rock-shaft having a operated by said pawl.

. 9. In a calendar, the combination with a shaft, of an indicating member secured on said shaft,'a sleeve on said shaft, an indicating member secured to said. sleeve, a gear on said shaft, a ratchet gear on said sleeve, mechanism operativelyconnecting said gears, means for operating said shaft, a stud on said last-mentioned means, an arm operated by said stud, a rock-shaft connected to said arm, and an arm operated by said rock-shaft, having a pawl thereon adapted to operate said ratchet gear.

10. In a calendar, the combination with a plurality of indicating members, of means for rotating one of said members intermittentl means for advancing another of said me'm ers at each com lete' revolution of said first-mentionedmember, additional means for advancing said secondmentioned mem ber periodicall and meansoperated by said last-mentioned means, adapted to advance still another of said indicating members.

11. In a calendar, the combination with a plurality of indicating members, of means for rotating one of said members intermittently, means for advancing another of said members at each com lete revolution of-sa-i'd first-mentioned member, additional means for advancing said second-mentioned member' periodically, and means for operating a plurality of others of said indicating mem-' bers. 1

12. In a calendar, the combination with a motor shaft, of a motor on said shaft, a gear driven by said motor, a shaft driven by said ar, an indicating member secured to said ast-mentioned shaft, asleeve on said lastmentioned shaft, an indicating member seowed to said sleeve, a gear on said lastmentioned shaft, a gear onsaid sleeve, and driving connections between said last-mentioned gears.-

13. In a calendar, the combination with a motor shaft, of a motor on said shaft, a gear driven by said motor, a shaft driven by said ear, an indicating member secured to said est-mentioned shaft, a sleeve on said lastmentione'd shaft, an indicating member secured to said sleeve, :1 gear on said last-menpawl thereon, and a vratchet wheel on said sleeve adapted to be .gears, and means connected tosaid first-men'- tioned gear adapted to peripdically operate saidlast-mentioned indicat member independent of said first-mentioned indicating member.

' 14.- In a calendar, thecombina'tion with a 10 controlling the latter from the former, commonth-indicating member, er a day-of-themonth indicating member, and means for prising an escapement wheel-having a notch corresponding to each'da of the month, a pawl co-acting" with sai notches, to sto said wheel 'a' ard for reventin' said aw gu P g P month-indicating member, of a day-of-the- 'month indica from engaging in one or more of said noteh'es,a camfor zfieratmg sa1dguard, and means onsaidmon v-indicatmg member for vcontrolling the o ration of sad cam.

15. In a calen ar, thecombination with-a ember, of a day-of-themonth-indicating month indicating member, and means for controlling the latter fromthe former, com

prlslng an escapement wheel having a notch cbrresponding to each dayof the month, a said notches to stopa said wheel, a guard for preventing said pawl pawl connected with from engaging in one or-more of said notches, acam for 0 rating said guard, a trip for o said-mont mdicating member'for controlling said trip.

plurality of pegs on 16. In acalendar, the combination with a month-indicating member, of; i a day-of-themonth indicating member and means for controlling the latterfromthe former, co prisingan escapement wheel having a notch pawl co-acting with sai notches-to: sto, said wheel, a guard for preventingsaid paw from engaging; in; one or more of said notches,- a cam for operating said guard, a

trip :for' operating said cam, and pins on said indicating member trip;

117. In a calendar, the combination with a month-indicating member, of a dayo-themonth indicating member and means for controlling thelatter from the former, com prising an escapement wheel'having a notch corresponding to each -da of the month',"a pawl co-acting with sai notches, to stop for controlling said said wheel, a guard for preventing saidpaw from engaging 1n one or more o f said notches, a cam for operating said guard, a said cam, a tri 'for en gagmg said pe and pins on sai month indiscating mem er for controlling said trip.

1 month-indicating member, of a day-of-themonth-indicating member, and means for controlling the latter from the former, comprising. an escapement wheel having a stop pingdpoint corresponding to each day of the men ,-a pawl c acting with said stopping tro rating sa1d"cam, and means .on'

of the month, a

ling the means, or preventing sai Ina calendar, the combination with a =ber, comprlsmg an points,ato stop said-wheel, and a gear'ro tated-h said salentkisdieating member, for

control ingsaid awl periodically.

19 a calen ar,.the combination with a month-indicating member, of a day-of-themonth indicating member, and means ,for controlling the letter from the former, comprising an escapementwheel having a ,gtopo the plng int corresponding to each day mont :-a'pawl eo-acting with said stop ing points to stop said wheel, a gear rota by said month'indicatmg member,and unsym metrically located pins on saidgear ior con 0 said awl periodically.- 2 n a endar, the combination-with a -mem the former, com

"prlsmg an escapement wheel having a notch corresponding to each da pawl co-aet' with sai said wheel, iz

in the month, a notches to sto ggard for preventing sai pawl from engaging inone or more of said notches, and a -g)e;r rotated by said month? mdicatm .mein for controlling the op eration 0 .said guard.

-21. In a calendar, thecombination with a month-indicating member, of a depot-themonthindicatingmember, and means for controlling-the latter from the former, comprising'an escapementwheel having a notch corresponding-to each day of the month, a pawl co-acting' with said notches to sto said wheel, a guard for preventing said pawl from engaging in one or more of said notches, a gear rotated by, said month-indieating member, and pins located on said gear for controlling the operation of said guard 'riodically.

22. day-of-the week indicating member, of a month-indicating member, a da -of-themonth indicating member, means or operating said members, and means for control operation of said last-mentioned member from said second-mentioned member, comprising an escapement wheel having a sto ping point corresponding to each e month, a pawl co-actmg .with

881d. sto ping point to sto said wheel, and .pa-wl from looking in one or more of said stopping points,

23. In a calendar, the combination with a day-of-the-Week indicating member, of a month-indicating. member, a --'da -of-themonth-indicating" member, means ating said members, ling the operation member from said and means for controlof S816. last-mentioned second-mentioned mem a notch corresponding to; each day' in the a calendar, the combination with a escapement wheel having or opermonth, a pawl co-acting with said notches to stop said wheel, and a and for prevent ing said pawl-from engaging in one or more of said notches.

24. In a calendar, the combination with a I neor more of said stopping points, a cam day-of-the-week indicating member, of a month-indicating member, a day-of-themonth indicating member, means for operating said members, and means for controlling the operation of said last-mentioned member from said second-mentioned member, comprising an esoapement Wheel having astopplng point corresponding to each day in the month, a pawl co-acting with .said stopping points to stop said wheel, a guard for preventing said pawl from looking in for operating said guar a trip for operating said cam and pins on said monthindicating member. for controllingsaid trip.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES E. BOILLOT.

Witness'esi HORATIO WHITING, Jorm P. DAVIS. 

